Based on the aggregated intelligence of 170,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, voice over IP (VOIP) software specialist BroadSoft (Nasdaq: BSFT) has received the dreaded one-star ranking.

With that in mind, let's take a closer look at Broadsoft's business and see what CAPS investors are saying about the stock right now.

Broadsoft facts

Headquarters (founded) Gaithersburg, Md. (1998)
Market Cap $619.6 million
Industry Application software
Trailing-12-Month Revenue $79.15 million
Management

Co-founder/CEO Michael Tessler

Co-founder/Chief Technology Officer Scott Hoffpauir
Trailing-12-Month Profit Margin (3.6%)
Cash/Debt $49.5 million / $2.4 million
Competitors

Alcatel-Lucent (NYSE: ALU)

Cisco Systems (Nasdaq: CSCO)

Sources: Capital IQ (a division of Standard & Poor's) and Motley Fool CAPS.

On CAPS, 83% of the 77 members who have rated Broadsoft believe the stock will underperform the S&P 500 going forward. These bears include All-Star kinosternon and fellow Fool Sean Williams (TMFUltraLong), the fourth-ranked member in all of CAPS.

Late last month, kinosternon touched on Broadsoft's seemingly unsustainable price run: "Looks like the momentum investors ran this one up in a big way. Kudos to [Broadsoft] for their great quarter and strong outlook, but I think those momentum investors will start taking profits soon."

Since Broadsoft's expectation-crushing quarter in early November, its shares are up more than a whopping 150%. Currently, Broadsoft even trades at a substantial forward P/E (44.8) premium to rivals Alcatel-Lucent (16.2) and Cisco (10.4), as well as other voice plays such as Polycom (Nasdaq: PLCM) (20.0) and 8x8 (Nasdaq: EGHT) (16.0).

CAPS All-Star TMFUltraLong elaborates on the bear case:

Unless Broadsoft is planning on trouncing estimates next quarter by roughly 200%, then this is significantly overvalued. 18 times book value, 7 times sales and up a staggering 200 % in less than a few weeks. I really don't see any differentiating factor that makes [Broadsoft] better than say Polycom (Nasdaq: PLCM) in the VOIP space but hey, the market is fickle right. Technical and fundamentals agree [it's] time to hide your kids, this could get ugly.

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